CN110247510A - A kind of simple system for generator sudden unloading process load testing - Google Patents
A kind of simple system for generator sudden unloading process load testing Download PDFInfo
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- CN110247510A CN110247510A CN201910631835.XA CN201910631835A CN110247510A CN 110247510 A CN110247510 A CN 110247510A CN 201910631835 A CN201910631835 A CN 201910631835A CN 110247510 A CN110247510 A CN 110247510A
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- Prior art keywords
- generator
- energy storage
- storage wheel
- inertia energy
- simple system
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/02—Additional mass for increasing inertia, e.g. flywheels
- H02K7/025—Additional mass for increasing inertia, e.g. flywheels for power storage
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
- H02K7/1807—Rotary generators
- H02K7/1846—Rotary generators structurally associated with wheels or associated parts
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
Transmission shaft respective in motor, generator and inertia energy storage wheel is connected with each other by a kind of simple system for generator sudden unloading process load testing that this programme provides, including motor, generator, inertia energy storage wheel and transmission mechanism, transmission mechanism.When system starts, motor is stored in high-speed rotating flywheel by the flywheel inside transmission mechanism speed-raising generator and inertia energy storage wheel, energy in the form of kinetic energy.When shock load test mode, inertia energy storage wheel conveys energy to generator simultaneously by transmission mechanism and motor, and generator is kept to be completed in a short time load testing test.It stores or releases energy by inertia energy storage wheel, so that system has enough torques that generator speed is maintained not rise sharply or fall in a short time, load fluctuation is relatively stable, to guarantee that revolving speed maintains constant in the generator short time.
Description
Technical field
The invention belongs to generator loading detection technique fields, in particular to a kind of to survey for the load of generator sudden unloading process
The simple system of examination.
Background technique
Because marine generator single-machine capacity is smaller, and certain heavy load capacity on ship and separate unit generator capacity phase
Closely, very big impact (voltage, frequency are fallen larger) is caused to generating set when such load starts, therefore to ship
The stability of electric system proposes higher requirement.The load sudden unloading process performance test of generator becomes the weight of marine generator
Want test content.
Traditional sudden unloading process load test test method needs prime mover that power matches therewith as driving, presses
Load of the test request to the rated current, power factor 0.4 of generator impact 60% detects the transient process hair of shock load
The stability of motor performance.And the characteristics of sudden unloading process performance test, is as follows: the feature that the response time is short, load fluctuation is big.Therefore
There must be enough torques that generator speed is maintained not fall in short time.
Further, since the power of middle generator is larger, the price of the matched prime mover of sudden unloading process active load therewith
Valuableness, and matched distribution capacity is required also to greatly increase, thus this test to the investment of generator manufacturer compared with
Greatly, most generator manufacturing firms can not implement.
Therefore, during completing generator loading sudden unloading process experimental test, how to maintain to turn in the generator short time
Speed is constant, is those skilled in the art's urgent problem to be solved.
Summary of the invention
The purpose of the present invention is to provide a kind of simple systems for generator sudden unloading process load testing, can survey
Invariablenes turning speed in the generator short time is maintained during examination.
In order to solve the above technical problems, the present invention provides a kind of simple system for generator sudden unloading process load testing
System, including motor, generator, inertia energy storage wheel and transmission mechanism, the transmission mechanism are used for the motor, the hair
The transmission axis connection of motor and the inertia energy storage wheel.
Preferably, in above-mentioned simple system, the transmission mechanism is tape handler, chain-drive mechanism or gear drive
Mechanism.
Preferably, in above-mentioned simple system, the tape handler includes two belt wheels and connection described two three
The belt of belt wheel, described two three belt wheels are respectively arranged at the transmission shaft of the motor and the generator electric, and
On the transmission shaft of the inertia energy storage wheel.
Preferably, in above-mentioned simple system, the belt is flat rubber belting, V band, V-ribbed belt or round belt.
Preferably, in above-mentioned simple system, the chain-drive mechanism includes two three sprocket wheels and connects described two
The chain of three sprocket wheels, described two three sprocket wheels are respectively arranged at the transmission shaft of the motor and the generator electric,
And on the transmission shaft of the inertia energy storage wheel；
Or, the gear drive includes two three pitch wheels, described two three gears are set respectively
It is placed on the transmission shaft of the motor and the generator electric and the transmission shaft of the inertia energy storage wheel.
Preferably, in above-mentioned simple system, the transmission mechanism is variable transmission mechanism.
It preferably, further include being used to support the motor, the generator, the inertia in above-mentioned simple system
The support platform of flywheel and the transmission mechanism.
Preferably, in above-mentioned simple system, the inertia energy storage wheel includes transmission shaft, is set on the transmission shaft
Flywheel, the bearing and bearing block for being set to the both ends of the drive shaft.
It preferably, further include the sealing protective covered on the inertia energy storage wheel in above-mentioned simple system.
A kind of simple system for generator sudden unloading process load testing that this programme provides, including motor, power generation
Machine, inertia energy storage wheel and transmission mechanism, transmission mechanism is by transmission shaft phase respective in motor, generator and inertia energy storage wheel
It connects.When system starts, motor is by the flywheel inside transmission mechanism speed-raising generator and inertia energy storage wheel, and energy is with dynamic
Energy form is stored in high-speed rotating flywheel.When shock load test mode, inertia energy storage wheel passes through transmission mechanism and electricity
Motivation conveys energy to generator simultaneously, and generator is kept to be completed in a short time load testing test.Pass through inertia energy storage wheel
It stores or releases energy, so that system has enough torques that generator speed is maintained not rise sharply or fall in a short time, carry
Lotus fluctuation is relatively stable, to guarantee that revolving speed maintains constant in the generator short time.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the schematic diagram for the simple system for generator sudden unloading process load testing that this programme provides；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the simple system for generator sudden unloading process load testing that provides of this programme in the case where starting test mode
Energy transmission schematic diagram；
Fig. 4 is that the simple system for generator sudden unloading process load testing that this programme provides tests shape in shock load
Energy transmission schematic diagram under state；
Fig. 5 is the structural schematic diagram for the inertia energy storage wheel that this programme provides.
In upper figure:
Motor 1；Generator 2；Inertia energy storage wheel 3；Sealing protective 301；Flywheel 302；Bearing 303；Bearing block 304；
Transmission mechanism 4；Support platform 5.
Specific embodiment
Core of the invention is to provide a kind of simple system for generator sudden unloading process load testing, can test
Invariablenes turning speed in the generator short time is maintained in the process.
In order to make those skilled in the art more fully understand technical solution provided by the invention, below in conjunction with attached drawing and
The present invention is described in further detail for specific embodiment.
Please refer to Fig. 1-Fig. 5, a kind of simple system for generator sudden unloading process load testing provided by the present invention,
Including motor 1, generator 2, inertia energy storage wheel 3 and transmission mechanism 4, transmission mechanism 4 is for motor 1, generator 2 and is used to
Connection between the property respective transmission shaft of flywheel 3.
It should be noted that the flywheel energy storage working principle of inertia energy storage wheel 3 are as follows: when starting above-mentioned simple system, electricity
Motivation 1 is raised speed the flywheel inside generator 2 and inertia energy storage wheel 3 by transmission mechanism 4, until rated speed state, energy with
Kinetic energy form is stored in high-speed rotating flywheel；In shock load test mode, to the specified electricity of 2 impact 60% of generator
Stream, the load that power factor is 0.4, system release energy, and high-speed rotating flywheel utilizes its effect of inertia, passes through transmission mechanism
4 and motor 1 simultaneously to generator 2 convey energy, keep generator 2 be completed in a short time load testing test.On the contrary,
Prominent when unloading load test condition, to the prominent rated current for unloading 60% of generator 2, the load that power factor is 0.4, system continues to store up
Energy is deposited, energy is stored in high-speed rotating flywheel in the form of kinetic energy.
Due to the presence of inertia energy storage wheel 3, so that system has enough torques to maintain generator speed not in a short time
It rises sharply or falls, load fluctuation is relatively stable, to guarantee that revolving speed maintains constant in the generator short time.
A kind of simple system for generator sudden unloading process load testing that this programme provides, including motor 1, power generation
Machine 2, inertia energy storage wheel 3 and transmission mechanism 4, transmission mechanism 4 will be respective in motor 1, generator 2 and inertia energy storage wheel 3
Transmission shaft is connected with each other.When system starts, motor 1 is raised speed by transmission mechanism 4 inside generator 2 and inertia energy storage wheel 3
Flywheel, energy are stored in high-speed rotating flywheel in the form of kinetic energy.When shock load test mode, inertia energy storage wheel 3 is logical
It crosses transmission mechanism 4 and motor 1 conveys energy to generator 2 simultaneously, generator 2 is kept to be completed in a short time load testing examination
It tests.It stores or releases energy by inertia energy storage wheel 3, so that system has enough torques to maintain generator speed in a short time
It will not rise sharply or fall, load fluctuation is relatively stable, to guarantee that revolving speed maintains constant in the generator short time.
In a preferred embodiment, transmission mechanism 4 is tape handler, chain-drive mechanism or gear drive machine
Structure.The characteristics of transmission mechanism 4 has structure simple, stable drive.Especially tape handler is scratched since driving belt has
Property, impact can be mitigated, absorb that vibration, stable drive, noise are small, and manufacture and installation accuracy requirement are low, easy to maintain.
It is connected between the transmission shaft (i.e. output shaft) of motor 1 and the transmission shaft (i.e. shaft) of generator 2 by shaft coupling
It connects.
Specifically, tape handler includes the belt of two belt wheels of two belt wheels and connection, and two belt wheels are separately connected electricity
The transmission shaft of transmission shaft and inertia energy storage wheel 3 that motivation 1 and generator 2 are connected.According to the difference of transmission principle, have by skin
The Friction Type Belt Drive of frictional force transmission between band and belt wheel also has synchronous with the tooth intermeshing transmission on belt wheel by belt
V belt translation.Friction-type driving belt divides flat rubber belting, V band and particular band (such as V-ribbed belt, round belt) according to the difference of its cross sectional shape
Deng.
Chain-drive mechanism includes the chain of two sprocket wheels of two sprocket wheels and connection, and two sprocket wheels are separately connected 1 He of motor
The transmission shaft of transmission shaft and inertia energy storage wheel 3 that generator 2 is connected.
Gear drive includes two gears, and two gears are intermeshed, and two gears are separately connected motor 1 and hair
The transmission shaft of transmission shaft and inertia energy storage wheel 3 that motor 2 is connected.
In addition, transmission mechanism 4 can be with variable transmission mechanism, i.e. tape handler is V belt translation gear, chain conveyer
Mechanism is chain conveyer gear, and gear drive is gear-driven variable-speed motor structure.By changing belt wheel, gear or sprocket wheel
Size realizes the electrodeless variation of transmission ratio.Each belt wheel, sprocket wheel or gear select different rulers according to the generator 2 of different series
Very little size.
Inertia energy storage is maintained by V belt translation gear (also can be used chain conveyer, other gears such as gear drive)
The inertia energy of wheel 3 is identical, i.e., the generator 2 for meeting different numbers of poles (rated speed is different) by change transmission ratio is having the same
Inertia energy completes the requirement of sudden unloading process load test, without being equipped with bigger flywheel for middle low-speed generator.
For the ease of arrangement, this programme further includes being used to support motor 1, generator 2, inertia energy storage wheel 3 and transmission
The support platform 5 of mechanism 4.
In a preferred embodiment, this programme further includes the sealing protective covered on inertia energy storage wheel 3
301.The periphery of flywheel 302 is provided with sealing protective 301, for reducing the wind abrasion loss of flywheel, improves test macro
Capacity usage ratio, prolong the service life, convenient for volume production and maintenance.
The simple system for generator sudden unloading process load testing that this programme provides passes through electricity under idle condition
The rotor and inertia energy storage wheel 3 of the drive generator 2 of motivation 1.There is high energy-storage property in order to meet the generator of different rotating speeds, lead to
The revolving speed that V belt translation gear improves inertia energy storage wheel is crossed, to meet the test request of different pole count generators.When generator 2
And inertia energy storage wheel 3, when reaching normal speed, test macro stores higher inertia energy, it is prominent to generator 2 by test request
Add 60% rated current, the load that power factor is 0.4, according to conservation of energy principle, the energy that the load of impact needs is logical
The offer of inertia flywheel is provided, since the test response cycle of shock load is shorter, generally 2s or so, therefore 3 energy of inertia energy wheel
2 stabilization of speed of generator is enough maintained, to ensure that the accuracy of system.
Due to using inertia energy storage wheel 3, the cost of investment of simple system is lower, and test accuracy is high, using transmission gear shift
Mechanism can satisfy motor under the more revolving speeds of generator of different numbers of poles and obtain high energy storage, is directed to different generator speeds to meet
Testing requirement.
Each embodiment in this specification is described by the way of arranged side by side or progressive, the highlights of each of the examples are
With the difference of other embodiments, the same or similar parts in each embodiment may refer to each other.
Used herein a specific example illustrates the principle and implementation of the invention, and above embodiments are said
It is bright to be merely used to help understand method and its core concept of the invention.It should be pointed out that for the ordinary skill of the art
, without departing from the principle of the present invention, can be with several improvements and modifications are made to the present invention for personnel, these improvement
It is also fallen within the protection scope of the claims of the present invention with modification.
Claims (9)
1. a kind of simple system for generator sudden unloading process load testing, which is characterized in that including motor (1), power generation
Machine (2), inertia energy storage wheel (3) and transmission mechanism (4), the transmission mechanism (4) are used for the motor (1), the power generation
The transmission axis connection of machine (2) and the inertia energy storage wheel (3).
2. simple system according to claim 1, which is characterized in that the transmission mechanism (4) is tape handler, chain biography
Motivation structure or gear drive.
3. simple system according to claim 2, which is characterized in that the tape handler includes two belt wheels and connection
The belt of described two belt wheels, described two belt wheels are respectively arranged at the biography that the motor (1) and the generator (2) are connected
On the transmission shaft of moving axis and the inertia energy storage wheel (3).
4. simple system according to claim 3, which is characterized in that the belt is flat rubber belting, V band, V-ribbed belt or round belt.
5. simple system according to claim 2, which is characterized in that the chain-drive mechanism includes two sprocket wheels and connection
The chain of described two sprocket wheels, described two sprocket wheels are respectively arranged at the biography that the motor (1) and the generator (2) are connected
On the transmission shaft of moving axis and the inertia energy storage wheel (3)；
Or, the gear drive includes two pitch wheels, described two gears are respectively arranged at described electronic
On the transmission shaft of transmission shaft and the inertia energy storage wheel (3) that machine (1) and the generator (2) are connected.
6. simple system according to claim 2, which is characterized in that the transmission mechanism (4) is variable transmission mechanism.
7. simple system according to claim 1, which is characterized in that further include being used to support the motor (1), described
The support platform (5) of generator (2), the inertia energy storage wheel (3) and the transmission mechanism (4).
8. simple system according to claim 1-7, which is characterized in that the inertia energy storage wheel (3) includes passing
Moving axis, the flywheel (302) being set on the transmission shaft, the bearing (303) and bearing block for being set to the both ends of the drive shaft
(304)。
9. simple system according to claim 1-7, which is characterized in that further include covering at the inertia energy storage
Take turns the sealing protective (301) on (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910631835.XA CN110247510A (en) | 2019-07-12 | 2019-07-12 | A kind of simple system for generator sudden unloading process load testing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910631835.XA CN110247510A (en) | 2019-07-12 | 2019-07-12 | A kind of simple system for generator sudden unloading process load testing |
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| CN110247510A true CN110247510A (en) | 2019-09-17 |
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| CN201910631835.XA Pending CN110247510A (en) | 2019-07-12 | 2019-07-12 | A kind of simple system for generator sudden unloading process load testing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111313599A (en) * | 2020-02-24 | 2020-06-19 | 中国科学院自动化研究所 | Motor stable output system |
| CN111456933A (en) * | 2020-05-08 | 2020-07-28 | 河海大学常州校区 | Method for detecting idle state of automobile electronic water pump |
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| CN104076280A (en) * | 2013-03-28 | 2014-10-01 | 深圳市万新科技有限公司 | AC power generator testing system |
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2019
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| CN104076280A (en) * | 2013-03-28 | 2014-10-01 | 深圳市万新科技有限公司 | AC power generator testing system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111313599A (en) * | 2020-02-24 | 2020-06-19 | 中国科学院自动化研究所 | Motor stable output system |
| CN111456933A (en) * | 2020-05-08 | 2020-07-28 | 河海大学常州校区 | Method for detecting idle state of automobile electronic water pump |
| CN111456933B (en) * | 2020-05-08 | 2022-03-08 | 河海大学常州校区 | Method for detecting idle state of automobile electronic water pump |
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Application publication date: 20190917 |
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